Pam's Jamaican Blue Baby
The outer trim ring...large piece is bolted on and comes off when you remove the grills from the car.
The small inner chrome trim is riveted on and would need to be ground off to get off. The mesh is held in place via spring clamps and pops out with some persuasion.
I left my inner aluminum trim in place and polished the aluminum before I started anything. (Mine was in pretty good shape and did not need anything other than polish.
I taped off the inner chrome when done polishing and painted the tabs that hold the mesh and backs of the grill housings satin black then flipped them over taped off the backs and did the argent paint to finish them on the front.
That is the same epoxy product I used....very strong and sandable.
Good luck.